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发明名称
Adjustable magnetic erasing head
摘要
申请公布号
US2958736(A)
申请公布日期
1960.11.01
申请号
US19580768231
申请日期
1958.10.20
申请人
ROBERTS ELECTRONICS, INC.
发明人
AKAI SABURO
分类号
G11B5/48
主分类号
G11B5/48
代理机构
代理人
主权项
地址
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